Thought i'd put a little tut on here on how to enable UMA on a sim free handset.

Firstly, you need to enter engineering screen.

First step is to access to the “Help Me” menu, to do so, on the main screen of the phone hold the following keys : ALT CAPS H (at the same time)

Note: For Pearl and other Sure-type phones press and hold the ALT key (Bottom left) and type E A C E, for Storm, hold the BACK arrow, and tap the screen in the following areas: TOP LEFT, TOP RIGHT, TOP LEFT, TOP RIGHT

Once you got the HelpMe screen you will need to use this gadget

w**.unlockbase.com/widget/blackberry-escreen-keygen.php

Enter details exactly as you see them on your HelpMe screen and press Get My Key

Type the key into the HelpMe screen (you won't see anything that you are typing)